1 files changed, 38 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/error-attributes.html b/testing/web-platform/tests/IndexedDB/error-attributes.html
new file mode 100644
index 0000000000..d65bf21790
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+++ b/testing/web-platform/tests/IndexedDB/error-attributes.html
@@ -0,0 +1,38 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>IndexedDB: Error attributes are DOMExceptions</title>
+<link rel="help" href="https://w3c.github.io/IndexedDB/#idbrequest">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/support.js"></script>
+<script>
+
+indexeddb_test(
+    function(t, db) {
+        db.createObjectStore('store');
+    },
+    function(t, db) {
+        var tx = db.transaction('store', 'readwrite', {durability: 'relaxed'});
+        var store = tx.objectStore('store');
+        var r1 = store.add('value', 'key');
+        r1.onerror = t.unreached_func('first add should succeed');
+
+        var r2 = store.add('value', 'key');
+        r2.onsuccess = t.unreached_func('second add should fail');
+
+        r2.onerror = t.step_func(function() {
+            assert_true(r2.error instanceof DOMException);
+            assert_equals(r2.error.name, 'ConstraintError');
+        });
+
+        tx.oncomplete = t.unreached_func('transaction should not complete');
+        tx.onabort = t.step_func(function() {
+            assert_true(tx.error instanceof DOMException);
+            assert_equals(tx.error.name, 'ConstraintError');
+            t.done();
+        });
+    },
+    'IDBRequest and IDBTransaction error properties should be DOMExceptions'
+);
+
+</script>